CVE-2026-14917

Description

A SAML authentication bypass vulnerability affects the Kong SAML plugin when the validate_assertion_signature option is explicitly set to false. This option is enabled by default. When disabled, the plugin may extract the SAML identity from an unsigned assertion and authenticate the user without verifying a valid cryptographic signature. As a result, an unauthenticated remote attacker may be able to submit a crafted SAML response and impersonate arbitrary users, including administrators

Is your site exposed to CVE-2026-14917?

Run a free security scan — no signup, results in seconds.

Weakness Type (CWE)

CWE-288 CWE-288

References

Other References

https://developer.konghq.com/gateway/changelog/#3-15-0-3

Frequently Asked Questions

What is CVE-2026-14917? +

A SAML authentication bypass vulnerability affects the Kong SAML plugin when the validate_assertion_signature option is explicitly set to false. This option is enabled by default. When disabled, the plugin may extract the SAML identity from an unsigned assertion and authenticate the user without verifying a valid cryptographic signature. As a result, an unauthenticated remote attacker may be able to submit a crafted SAML response and impersonate arbitrary users, including administrators

How do I check if I'm vulnerable to CVE-2026-14917? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-40582

ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the /api/public/user/login endpoint validates only the username and …

CVE-2025-23217

mitmproxy is a interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers and mitmweb is a web-based interface …

CVE-2025-2080

Optigo Networks Visual BACnet Capture Tool and Optigo Visual Networks Capture Tool version 3.1.2rc11 contain an exposed web management service …

CVE-2025-29996

This vulnerability exists in the CAP back office application due to improper implementation of OTP verification mechanism in its API …

CVE-2025-2492

An improper authentication control vulnerability exists in AiCloud. This vulnerability can be triggered by a crafted request, potentially leading to …

CVE-2025-4687

In Teltonika Networks Remote Management System (RMS), it is possible to perform account pre-hijacking by misusing the invite functionality. If …